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EVGA SR-2 - Dual Xeon Media Workstation in Mountain Mods U2-UFO - Page 2

post #11 of 17
can't wait to see it all together! nice finish.
post #12 of 17
Good Stuff here.. Subscribed.. thumb.gif
Hamster
(21 items)
 
Wheel
(15 items)
 
 
CPUMotherboardGraphicsRAM
i7 3930K MSI Bigbang X Power II Zotac GTX Titan (3) Corsair Dominator Platinum 16GB 4x4 1866  
Hard DriveHard DriveCoolingCooling
Samsung 512GB 840 Pro WD Black 2TB x2 RAID 0 Kyrographics (3) | Koolance 380i Aquaero 5 XT | Power Amp 2 (6) 
CoolingCoolingCoolingCooling
SR1 240 | TC TA120.3 (2) BP Z Multi 80ML Reservoir (2) EK Dual D5 Top (2) AC D5 (4) Dual Loop 
OSMonitorKeyboardPower
Win 7 Ultimate 64 3x Asus VG248 | Ergotron LX Triple Monitor stand Logitech G19 Corsair AX1200 + AX750 
CaseMouseMouse PadAudio
Caselabs M10 + Pedestal Logitech G700 Razer Goliathus + ME3 Razer Vespula onboard Realtek  
Other
JBL Creature II + Logitech G930 
CPUMotherboardGraphicsRAM
Intel i5 2500K Gigabyte GA Z68XP UD3R Intel SB integrated Corsair Vengeance LP CML16GX3M4A1600C9 
Hard DriveHard DriveHard DriveHard Drive
Crucial M4 (2) LSI Megaraid 9265 8i WD4000FYYZ0 (2) span WD2002FAEX (4) Raid 5 
CoolingOSMonitorKeyboard
Air Windows Server 2003 R2 EE Remote Desktop Remote Desktop 
PowerCaseMouse
Corsair AX750 Caselabs SM8 Merlin Remote Desktop 
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Hamster
(21 items)
 
Wheel
(15 items)
 
 
CPUMotherboardGraphicsRAM
i7 3930K MSI Bigbang X Power II Zotac GTX Titan (3) Corsair Dominator Platinum 16GB 4x4 1866  
Hard DriveHard DriveCoolingCooling
Samsung 512GB 840 Pro WD Black 2TB x2 RAID 0 Kyrographics (3) | Koolance 380i Aquaero 5 XT | Power Amp 2 (6) 
CoolingCoolingCoolingCooling
SR1 240 | TC TA120.3 (2) BP Z Multi 80ML Reservoir (2) EK Dual D5 Top (2) AC D5 (4) Dual Loop 
OSMonitorKeyboardPower
Win 7 Ultimate 64 3x Asus VG248 | Ergotron LX Triple Monitor stand Logitech G19 Corsair AX1200 + AX750 
CaseMouseMouse PadAudio
Caselabs M10 + Pedestal Logitech G700 Razer Goliathus + ME3 Razer Vespula onboard Realtek  
Other
JBL Creature II + Logitech G930 
CPUMotherboardGraphicsRAM
Intel i5 2500K Gigabyte GA Z68XP UD3R Intel SB integrated Corsair Vengeance LP CML16GX3M4A1600C9 
Hard DriveHard DriveHard DriveHard Drive
Crucial M4 (2) LSI Megaraid 9265 8i WD4000FYYZ0 (2) span WD2002FAEX (4) Raid 5 
CoolingOSMonitorKeyboard
Air Windows Server 2003 R2 EE Remote Desktop Remote Desktop 
PowerCaseMouse
Corsair AX750 Caselabs SM8 Merlin Remote Desktop 
  hide details  
Reply
post #13 of 17
This is going to be a mean build.

Really looking forward to this one, I love workstation builds wink.gif
post #14 of 17
Thread Starter 
I have been busy these days with work and couldn't finish the system but managed to assemble the case and take some pictures.

471

466

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469

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post #15 of 17
Thread Starter 
While I have been busy with work, I also had to wait for the black screws I ordered for the case to arrive. MM only included a bunch of (still inadequate) black thumbscrews. The rest of the included screws were silver not quite fitting the case black color. I decided I wanted to use all black screws, possibly the most unnoticeable ones; hence I ordered 6-32 screws 6mm and 9mm lengths with hex button heads. I also ordered black nuts to use with them whenever necessary. Therefore for all visible holes, I will be using these screws, which means even for fans mounts. I did do not want to use the thumbscrews even though they are more convenient since they are too big.
I received the screws today and I am putting the system together. I learned working in the lower level in a horizontal configuration is quite inconvenient. I am sure two level vertical configuration is more convenient. Nevertheless, I do not complain and I still like my choice.

Meanwhile, I have been trying to decide which hard drive to use for data storage. Remember, I mentioned acquiring an IBM M5015 raid controller (same as the LSI 9260-8i) and I planned to set up a raid 5 array for data storage. I almost made my mind to use 2.5” drives. This is because I have realized while the case has enough space to accommodate 3.5" drives (I need 8 units), when I will switch to water-cooling, this can become a problem. With 2.5" drives, there shouldn’t be a problem.

However, it turns out the choice of hard drive is not as smooth and obvious as I thought. There are three possiblities:

i) Using fast SSD drives in a raid 5 (or raid 0) configuration results in an incredibly fast I/O throughput.

Major con: SSD drives with large capacity are extremely expensive.

ii) Using consumer grade hard disk drives: this is pleasantly an inexpensive option which still can yield very good I/O throughput. Nevertheless, after doing extensive research I have learned about a serious burden:

A feature called TLER (Time-Limited Error Recovery) is crucial to lessen the likelihood of the failure of the raid array. It seems the two major hdd manufacturers have decided to exclude this feature from consumer grade hdd’s. Only enterprise level hdd’s feature the function. It may also be called CCTL (Command Completion Time Limit) or, ERC (Error Recovery Control).

An alternative solution would be having a raid card which allows to change the timeout value (the time the raid controller allocates to a given hard drive to do it standard recovery procedure in order to handle an occurring bad sector. At this point, I do not still know if M5015 raid controller would allow this. I will need to check it out.

Another problem: some users have reported poor I/O performance when using consumer grade hdd’s on a raid controller such as LSI 9260. In these situations, manufactures normally respond by saying they do not support the use such hard drives with thier controllers.

WD used to have a utility program which could be used to enable TLER on this class of hard drives. Apparently, in 2009 they decided to ship drives that could not make use of the utility, most likely for marketing reasons: an attempt to force consumers to buy their more expensive enterprise class drives if they wanted to have a raid array. Hence it became impossible to enable TLER.

iii) Using enterprise grade hard disk drives specially made for raid set ups.

Major con: The 2.5" drives are about 4 times more expensive than their consumer grade alternatives while the main useful difference is merely having TLER enabled by default. The 3.5" ones are still reasonably priced.


Your inputs are appreciated if you know a good solution to the dilemma.
Edited by raminux - 6/19/12 at 11:31pm
post #16 of 17
Thread Starter 
My apology for the long period of inactivity. Despite being busy with work, I finally managed to finish the workstation on air cooling. I have installed Windows 8 64bit release preview on the system and Linux Ubuntu 64bit inside Vmware Player. Windows Explorer file manager crashed a few times during extensive file handling last night. Nevertheless, the system works great overall.

Update on storage solution:

System drive: 2 x 128GB Crucial M4 set to raid 0.
Data storage: 5 x 1TB Seagate Constellation ES 3.5" drives set to raid 5

I have decided to stay on air cooling for a while as water-cooling is another expensive and time consuming project by itself. Nevertheless, I will start overclocking the system and see how far I can go with that on air. I will soon post pictures of the new system.

I guess the next task, aside from OC is bench-marking, right? Does anyone has a suggestion which software is best (preferably free ones)?

Now my Mac Pro tower is no longer needed and has to go. I still have a video project for which I need FCP. I moved the project over to my Macbook Pro.
post #17 of 17
Thread Starter 
Some little news on my system:

As of now I haven't had a chance to overclock the processors in my system yet. However, I had a chance running a little test on seeing how efficiently the CPU's are cooled.

After letting the Prime95 running for more 2 and half hours, CPU temperatures rise to 60 and 56 (average of cores). Note there is only one fan on each CPU: GT 1800rpm pushing air in. The fans actually don't run at their full rpm. One runs at about 1450rpm while the other one runs at 1200rpm. I don't know why they are running at different rpm's which I guess can explain the temperature difference between the two CPU's. Ambient temperature was about 21C. It looks like a good result. I hope I can soon try things OC'ed.
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